This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An astronaut at rest has a heart rate of 65 beats/min. What will her heart rate be as measured by an ... (Read 40 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
on: Jul 28, 2018
An astronaut at rest has a heart rate of 65 beats/min. What will her heart rate be as measured by an earth observer when the astronaut's spaceship goes by the earth at a speed of 0.80c?
 a. 108 beats/min
  c. 81 beats/min
  b. 39 beats/min
  d. 52 beats/min

Question 2

A ground observer measures the period of a pendulum moving as a part of an inertial frame of reference to be 2.30 s as the inertial frame moves by at a velocity of 0.800c. What would the observed period be of the same pendulum if its inertial frame were at rest with respect to the observer?
 a. 3.03 s
  c. 1.84 s
  b. 1.38 s
  d. 4.25 s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macmac

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

B


xclash

  • Member
  • Posts: 681
Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

sultana.d

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

The role of leptin in regulating appetite and metabolic rate. The role of leptin in regulating appetite and metabolic rate.
Conduction System of the Heart Conduction System of the Heart
POSTERIOR AND ANTERIOR SHEEP HEART POSTERIOR AND ANTERIOR SHEEP HEART
Relationship between Income Inequality and the Desired Tax Rate Relationship between Income Inequality and the Desired Tax Rate
Heart Sounds Heart Sounds
Penetrating Trauma to the Heart (Nail) as Seen on Lateral Chest X-Ray Penetrating Trauma to the Heart (Nail) as Seen on Lateral Chest X-Ray
Video: Hormonal regulation of pregnancy - week 1

For a complete list of videos, visit our video library